17יֵשׁ לַבַּעַל לְגַלְגֵּל בִּשְׁבוּעָה עָלֶיהָ שֶׁלֹּא זִנְּתָה עִם אִישׁ זֶה שֶׁקִּנֵּא לָהּ בּוֹ וְלֹא עִם אִישׁ אַחֵר. וְשֶׁלֹּא זִנְּתָה תַּחְתָּיו מִשֶּׁנִּתְאָרְסָה קֹדֶם שֶׁתִּנָּשֵׂא וְלֹא אַחַר שֶׁנִּשֵּׂאת. אֲבָל אֵינוֹ מְגַלְגֵּל עָלֶיהָ שֶׁלֹּא זִנְּתָה קֹדֶם הָאֵרוּסִין וְלֹא אַחַר שֶׁגֵּרְשָׁהּ אִם גֵּרְשָׁהּ וְהֶחֱזִירָהּ. שֶׁאִם זִנְּתָה בְּעֵת זֶה לֹא תֵּאָסֵר עָלָיו. וְכָל שֶׁתִּבָּעֵל וְלֹא תִּהְיֶה אֲסוּרָה לוֹ אֵינוֹ מַתְנֶה עִמָּהּ. לְפִיכָךְ אִם כָּנַס יְבִמְתּוֹ אֵינוֹ מְגַלְגֵּל עָלֶיהָ שֶׁלֹּא זִנְּתָה כְּשֶׁהָיְתָה שׁוֹמֶרֶת יָבָם. אֲבָל מְגַלְגֵּל עָלֶיהָ שֶׁלֹּא זִנְּתָה תַּחַת אָחִיו שֶׁאִם זִנְּתָה תַּחַת אָחִיו הֲרֵי זוֹ אֲסוּרָה עָלָיו. וְכֵן אִם גֵּרְשָׁהּ וְהֶחֱזִירָהּ מְגַלְגֵּל עָלֶיהָ שֶׁלֹּא זִנְּתָה תַּחְתָּיו בַּנִּשּׂוּאִין הָרִאשׁוֹנִים. וְיֵשׁ לוֹ לְגַלְגֵּל עָלֶיהָ בִּלְהַבָּא שֶׁלֹּא תִּזְנֶה תַּחְתָּיו וְשֶׁלֹּא תִּזְנֶה אַחַר שֶׁיַּחְזִירֶנָּה אִם יְגָרֵשׁ וְיַחֲזִיר. לְפִיכָךְ כְּשֶׁתִּזְנֶה לְהַבָּא מַיִם בּוֹדְקִין אוֹתָהּ וְיֶאֶרְעוּ לָהּ אוֹתָן הַמְאֹרָעוֹת. לְכָךְ נֶאֱמַר (במדבר ה כב) "אָמֵן אָמֵן". אָמֵן מֵאִישׁ זֶה אָמֵן מֵאִישׁ אַחֵר. אָמֵן נְשׂוּאָה אָמֵן אֲרוּסָה. אָמֵן לְשֶׁעָבַר אָמֵן לְהַבָּא:
[Based on the principle of] gilgul [sh'vuah], the husband may have the woman include in her oath that she did not commit adultery with the man concerning whom she was given a warning or with any other man, that she did not commit adultery during the time between her consecration and the consummation of the marriage, nor after the consummation. He may not, however, have her include that she did not engage in relations [with another man] before she was consecrated or between the time she was divorced [and remarried], if she was in fact divorced and remarried. The rationale is that even if she engaged in relations [with other men at that time], she would not be forbidden [to her husband]. And whenever she is not forbidden to him, he cannot make any stipulations regarding her conduct. For this reason, if a man married his yevamah, he cannot compel her to include in her oath that she did not engage in relations with others while she was waiting for him to perform yibbum. He may, however, compel her to include in her oath that she did not commit adultery when married to his brother. For if she committed adultery when married to his brother, she is forbidden to him. Similarly, if [the husband] divorced his wife and remarried her, he may compel her to include in her oath that she did not commit adultery when married to him originally. Similarly, he may have her include in her oath that she will not commit adultery in the future or that she will not commit adultery if he divorces her and remarries her. [In such an instance,] if she commits adultery in the future, the waters will check her [fidelity], and [if she is guilty,] the physical phenomena [described above] will be visited upon her. All the above is implied by [the woman's response to the oath, Numbers 5:22]: "Amen, Amen." [This can be interpreted as meaning] Amen with regard to this man; Amen with regard to others. Amen with regard to the time when I was married; Amen with regard to the time when I was consecrated. Amen with regard to the past; Amen with regard to the future.
